code: def test_imports():
      source = (
          "import sys\n"
          "from os import environment, path\n"
          "\n"
          "import sphinx as Sphinx\n"
          "from sphinx.application import Sphinx as App\n"
      )
      parser = Parser(source)
      parser.parse()
      assert parser.definitions == {}
      assert parser.deforders == {
          "sys": 0,
          "environment": 1,
          "path": 2,
          "Sphinx": 3,
          "App": 4,
      }
  
imports: from sphinx.pycode.parser import Parser
  from sphinx.util.inspect import signature_from_str
label_desc: Use image node_id 17 for calling a global function with example usage: test_imports() without return types